68552618 has 8 divisors (see below), whose sum is σ = 103239360. Its totient is φ = 34139500.

The previous prime is 68552611. The next prime is 68552623. The reversal of 68552618 is 81625586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×68552618² = 9398922869307848, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68552611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67778 + ... + 68781.

It is an arithmetic number, because the mean of its divisors is an integer number (12904920).

Almost surely, 2^68552618 is an apocalyptic number.

68552618 is a deficient number, since it is larger than the sum of its proper divisors (34686742).

68552618 is a wasteful number, since it uses less digits than its factorization.

68552618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136812.

The product of its digits is 115200, while the sum is 41.

The square root of 68552618 is about 8279.6508380487. The cubic root of 68552618 is about 409.2682127930.

The spelling of 68552618 in words is "sixty-eight million, five hundred fifty-two thousand, six hundred eighteen".